Free windows space

Hello everybody, 2 years ago I deleted windows from my Chuwi Hi8 PQ32G22170901873 but Android remained with only 6GB.

Today, I tried to swipe space in order to have 32GB in Android, but Gparted didn’t recognize the device. Also I tried with Intel Flash tool to flash android, but fastboot seems to hang. When I enter in DNX Fastboot mode (please realease the button combo) twrp, or intel flash tool and in general my pc doesn’t recognize it and no command functions.

I searched on the internet and in this forum for different solutions, however either they are too confusing or there are links that no longer work, could you please help me?